AS48021#1591 ALSTOR-AS ALSTOR A. Zwierzynski i Wspolnicy Sp. z o.o.256
AS48023#1592 PLATANWARSAW-AS StarNet Telecom Sp. z o.o.256
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources